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17 Cards in this Set
- Front
- Back
Five major features for the definition of concussion
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1. Blow to head
2. rapid onset of short-lived impairment of neurologic function that resolves spontaneously 3. Acute symptoms largely reflect a functional disturbance rather than a structure injury 4. Resoultion of clinical and cognitive symptoms typically follows a sequential course 5. No abnormality on imaging is seen |
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Why is it speculated that children are more vulnerable to concussion than adults?
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1. Due to continued development of Nervous System, synapses
2. Development of skeletal system (protection) 3. Cervical soft tissue's ability to withstand energy transmitted |
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Substance involved with concussion in brain
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Glutamate - excitatory NT that will interfere with cell communication
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S/S of post-concussion syndrome
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HA, fog, emotional changes, amnesia, behavioral changes, sleep disorders, altered cognition, diminished reaction time, dizziness, gait alteration.
May progress to dementia, parkinsonism, ALS, chronic traumatic encephalopathy |
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Extent of head injury is related to what factors?
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1. amount of force
2. number of previous concussions 3. ability of anatomical structures to absorb energy 4. age 5. capability of objects involved to absorb energy 6. Protective equipment |
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Protective equipment and Zurich's findings
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Protective equipment does not prevent concussion (includes mouth guards - but mouth guards can prevent dental/orofacial injuries)
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What CNs (and how to test) after concussion
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II: optic, vision
III: occulomotor: eye movement IV: trochlear: diagnol movement VII: fascial, control of mm |
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Last deficits to recover following concussion in high school athletes?
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cognitive function
-3 words -Subtract 7 from 100 -months in reverse order |
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What does The STandardized Assessment of Concussion (SAC) test?
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orientation, immediate memory, neurological status, concentration and delayed recall of the athlete
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What does the Immediate Post-Concussion Assessment and Cognitive Testing System or ImPACT test?
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level of symptoms
verbal/visual memory processing speed reaction time (to 1/100th of a second) attention span and time response variability non-verbal problem solving |
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Concussion rehabilitation stages
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1 through 5 based on HR
Stage 1: 30-40% for 10-15 mins STage 2: 40-60 min for 30 mins 1: no activity 2. light aerobic 3. sport specific 4: full contact 5: return to play |
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What is second impact syndrome?
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Potentially fatal injury due to complete loss of auto-regulation of blood supply to the brain resulting in uncontrolled swelling
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Best helmet for concussions
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Riddell Revolution Speed
5 star crash test |
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Zurich: 6 stages of Graduated RTP Protocol
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1. No activity
2. Light aerobic < 70% Max HR 3. Sport-specific (add movement) 4. Non-contact training drills (ex, coordination, and cognitive load) 5. Full-contact practice (restore confidence, assess functional skills by coaches) 6. RTP |
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Predictors of prolonged recovery after concussion?
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-previous concussion
-Greater number, severity, and duration of symptoms -youth athlete -ADD, mood disorders, learning disorders |
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Balance after concussion: sensitive or specific?
Nuerophysiological testing? |
More specific, meaning good balance take with a grain of salt
More sensitive |
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What if symptoms return during a graded RTP progression?
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Stop
Restart from preceding symptom-free step |